The DDT: Named after me, David Duong Tran...but otherwise has other abbreviation.
Description: The DDT Mjolnir varient was designed after the fall of Reach. Most notably because of its own energized sword embedded into the forearm of the armor, which extends upon the bearer's thoughts. The DDT helmet are wired into the bearer's skull and brain, to signal quicker reflexes upon thinking and thus channel psionic energy into the forearm of either side or both for when the bearer runs out of ammunition. This stage, however, can only be operated when the bearer has enough willpower to channel this energy into, not just the forearms but to every where else, such as legs for higher jumps, arms for farther grenade throws, body to withstand certain amounts of damage, etc. The bearer can do so with these energetic thoughts only by experience. [WARNING: THIS IS NON-CANON] SPARTAN-117, John was able to be tested and try this newly developed armor after the fall of Reach, only to be mentally disturbed. The specialists had to surgically remove the helmet from the brain and skull, and has replaced it with the Mark V and Mark VI Mjolnir. [END WARNING] The specialists had to put this new armor away for further examination and testing, until the alliance with the Elite Covenants. Along comes the Brutes, so then the DDT Mjolnir varient was dusted off and placed on a few special marines who are dedicated to the survival of Earth and Her colonies. Not many has passed the training with this armor. There is one though, SPARTAN-397.
DDT: stands for Dark Delusion of Terror
mentally upkeeping your physical being, triggering a blade is awesome...but another idea that JUST came to mind was somehow making a Big Daddy from Bioshock and mix MJOLNIR armor to make some kind of suit..but my real thoughts havnt popped in yet... 
DANG cant think..but would this be a mediocre thought???(sorry for the misspelling).....
